Battle of the Sexes: clip from documentary about tennis star Billie Jean King - video

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Watch a clip from a new documentary about the 1973 tennis match labelled 'the battle of the sexes' after former pro Bobby Riggs came out of retirement to play Billie Jean King in an effort to prove that men were better than women at the sport. King - a long-term campaigner for equality - won the match 6–4, 6–3, 6–3. Here some of today's top female players explain what her victory meant to them. Battle of the Sexes is released in the UK on Wednesday 26 June